Graphene Nanoplatelet Based Polymer Composites And Their Multiple Applications
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Graphene Nanoplatelet Based Polymer Composites And Their Multiple Applications
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Author : Zeyang Yu
language : en
Publisher:
Release Date : 2019
Graphene Nanoplatelet Based Polymer Composites And Their Multiple Applications written by Zeyang Yu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Electronic dissertations categories.
Graphene nanoplatelets (GnP) consist of a few layers of graphene with thicknesses in the nanometer range. GnP is considered a multifunctional nanomaterial since it possesses excellent mechanical, electrical and thermal properties and as a result of its 2D structure, it offers the possibility of improving the barrier properties of a polymer matrix by reducing the permeability of small molecules through the polymer matrix. The aromatic planar basal surface of GnP consisting of carbon in the sp2 state is inert and the carbon atoms at the GnP edges are the few sites at which functional groups can be added to GnP. When GnP is treated with strong acids, graphene oxide (GO) is formed. The carbon atoms are changed from sp2 to sp3 bonding and the basal plane surface has a large population of oxygen groups which change the surface from hydrophobic to hydrophilic. The GO has the potential to act as a coupling agent to improve the interfacial interaction between GnP and the polymer matrix. Besides adding GnP to a polymer to form a multifunctional polymer composite, the GnP can be fabricated into thin 'paper' electrodes by vacuum filtration of a GnP suspension. This GnP thin film has in-plane electrical conductivity similar to metals and when coated with an insulating polymer layer can function as an electrode in an electrostatic actuator. This dissertation investigates the interaction of GnP with polymer matrices, modifying the surface chemistry to improve the interfacial interaction between filler and matrix, and exploring new applications for multifunctional GnP-polymer composites.The dispersion of GnP into a thermoplastic polyurethane (TPU) through melt blending has been investigated. The dispersion and alignment of GnP plays a key role in attaining the multifunctional properties of the composite. 25wt% GnP was incorporated into TPU through an extrusion process, wherein the dispersion and alignment of GnP was controlled by the film extrusion speed. The effect of three film extrusion speeds of 2, 3 and 5 ft/min on the dispersion and alignment of GnP were investigated. The optimum extrusion conditions gave 350% improvement in through-plane thermal conductivity; 75% reduction in oxygen permeability; and the tensile modulus and strength increased by 950% and 470% respectively.Graphene oxide (GO) was selected as a possible modifier to improve the interaction between GnP and an epoxy matrix. The rich oxygen based functional groups on the GO surface could function as reaction sites for chemical bonding directly or sites for adding other chemical groups such as diamines or epoxy. GO and GnP were sonicated together in a water phase forming a GO-GnP complex, followed by treatment with two different diamines ( (p-phenylenediamine (PPDA) and Jeffamine D2000) with different chain lengths. The functionalized GO-GnP complex was added to the GnP-epoxy composite at a 0.86wt% loading. An increase in tensile modulus of ~60% was measured as a result.The GnP was also investigated as a thin 'paper' electrode fabricated through vacuum filtration of a GnP suspension. GnP electrodes were fabricated from the compressed GnP paper and then coated on both sides with a thin epoxy layer. An electrostatic actuator was constructed from two parallel-aligned composite GnP paper electrodes fixed at the anode of the high power supply and with the cathode connected to the ground. The two composite electrodes would separate at the free end when a voltage was applied. The actuating performance was shown to be improved based on either increasing the surface area of electrode or enhancing the relative permittivity of the insulating layer between two electrodes.
Innovations In Graphene Based Polymer Composites
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Author : Sanjay Mavinkere Rangappa
language : en
Publisher: Woodhead Publishing
Release Date : 2022-06-15
Innovations In Graphene Based Polymer Composites written by Sanjay Mavinkere Rangappa and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-15 with Technology & Engineering categories.
Innovations in Graphene-Based Polymer Composites reviews recent developments in this important field of research. The book's chapters focus on processing methods, functionalization, mechanical, electrical and thermal properties, applications and life cycle assessment. Leading researchers from industry, academia and government research institutions from across the globe have contributed to the book, making it a valuable reference resource for materials scientists, academic researchers and industrial engineers working on recent developments in the area of graphene-based materials, graphene-based polymer blends and composites. Readers will gain insights into what has been explored to-date, along with associated benefits and challenges for the future. Presents a strong emphasis on synthesis methods, functionalization, processing and properties Includes chapters on characterization, electrical conductivity and modeling and simulation Provides recent advances in applications, including drawbacks and future scope
Graphite Graphene And Their Polymer Nanocomposites
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Author : Prithu Mukhopadhyay
language : en
Publisher: CRC Press
Release Date : 2012-10-30
Graphite Graphene And Their Polymer Nanocomposites written by Prithu Mukhopadhyay and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-30 with Technology & Engineering categories.
Graphite, Graphene, and Their Polymer Nanocomposites presents a compilation of emerging research trends in graphene-based polymer nanocomposites (GPNC). International researchers from several disciplines share their expertise about graphene, its properties, and the behavior of graphene-based composites. Possibly the first published monograph of its kind, this book provides a comprehensive snapshot of graphite, graphene, and their PNCs, including the underlying physics and chemistry, and associated applications. Beginning with an introduction to natural and synthetic graphite, the precursors to graphene, the text describes their properties, characterization techniques, and prominent commercial applications. The focus then moves to graphene and its unique features, and techniques for its characterization. The chapters cover advances in electrochemical exfoliation of graphite, as well as exfoliation routes to produce graphene and graphite nanoplatelets for polymer composites. They also explore commercial use of graphene-based materials, such as emerging clean energy and pulse laser applications, and use as nanofillers in epoxy-based composites. The authors provide an overview of nanofillers and address two methods for GPNC preparation as well as specialized properties of GPNC. With its multidisciplinary approach, this book provides a broader scientific and engineering perspective necessary for meaningful advancements to take place.
Graphene Polymer Composites
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Author : Fernão D. Magalhães
language : en
Publisher: MDPI
Release Date : 2018-09-13
Graphene Polymer Composites written by Fernão D. Magalhães and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-13 with Electronic books categories.
This book is a printed edition of the Special Issue "Graphene-Polymer Composites" that was published in Polymers
Graphene Nanoplatelets
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Author : Silvia González Prolongo
language : en
Publisher: MDPI
Release Date : 2020-04-24
Graphene Nanoplatelets written by Silvia González Prolongo and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-24 with Technology & Engineering categories.
Graphene nanoplatelets (GNPs) have attracted considerable interest due to their exceptional mechanical, electrical, and thermal properties, among others. This book provides a deep review of some aspects related to the characterization of GNPs and their applications as nanoreinforcements for different types of matrices such as polymeric- or cement-based matrices. In this book, the reader will find how these nanoparticles could be used for several industrial applications such as energy production and storage or effective barrier coatings, providing a wide overview of future progress in this topic
Polymer Nanocomposites Containing Graphene
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Author : Mostafizur Rahaman
language : en
Publisher: Woodhead Publishing
Release Date : 2021-08-22
Polymer Nanocomposites Containing Graphene written by Mostafizur Rahaman and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-22 with Technology & Engineering categories.
Polymer Nanocomposites Containing Graphene: Preparation, Properties and Applications provides detailed up-to-date information on the characterization, synthesis, processing, properties and application of these materials. Key topics that are covered in the book include: the methods of synthesis and preparation of graphene as well as different processes and methods of functionalization and modification of graphene for improving composite properties. The preparation techniques focus on which method is advantageous for getting improvements in properties along with their drawbacks. The structure and property relationships are also discussed in detail. The issues related to graphene dispersion in polymer matrices is also addressed as well as the use of graphene as reinforcement in thermoset resins. The different properties of the composites like mechanical, electrical, dielectric, thermal, rheological, morphology, spectroscopy, electronic, optical, and toxicity are reviewed from the geometrical and functional point of view. Applications cover electrical and electronic fields, flame and fire retardancy, structural, sensing and catalysis, membrane, in fuel cell and solar energy, hydrogen production, aerospace engineering, packaging, and biomedical/bioengineering fields. Up-to-date patents on graphene-polymer nanocomposites are also covered. Those working in graphene-based materials will benefit from the detailed knowledge presented in this book on graphene synthesis, composite preparation methods, and the related problems associated with them. The book will enable researchers to select the appropriate composite as per their respective field of application. Presents novel approaches for the preparation of graphene, its modification and nanocomposites with enhanced properties for state-of-the-art applications Special attention is given to how graphene is synthesized through different routes, their functionality, dispersion related matters and structural aspects controlling the composite properties for various applications All synthesis methodology and functionalization procedure for graphene is discussed
Handbook Of Graphene Volume 4
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Author : Cengiz Ozkan
language : en
Publisher: John Wiley & Sons
Release Date : 2019-06-28
Handbook Of Graphene Volume 4 written by Cengiz Ozkan and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-28 with Technology & Engineering categories.
The fourth volume in a series of handbooks on graphene research and applications The Handbook of Graphene, Volume 4: Composites looks at composite materials exclusively. Topics covered include graphene composites and graphene-reinforced advanced composite materials. The following graphene-based subjects are discussed: ceramic composites; composite nanostructures; composites with shape memory effect; and scroll structures. Chapters also address: the fabrication and properties of copper graphene composites; graphene metal oxide composite as an anode material in li-ion batteries; supramolecular graphene-based systems for drug delivery; and other graphene-related areas of interest to scientists and researchers.
Functionalized Graphene Nanocomposites And Their Derivatives
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Author : Mohammad Jawaid
language : en
Publisher: Elsevier
Release Date : 2018-11-01
Functionalized Graphene Nanocomposites And Their Derivatives written by Mohammad Jawaid and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-01 with Science categories.
Functionalized Graphene Nanocomposites and Their Derivatives: Synthesis, Processing and Applications explains how the functionalization technique is used to create graphene nanocomposites, also exploring its current uses in industrial applications. Graphene-based nanocomposites are one of the major advancements in polymer-based materials, thus the synthesis, nanoscale dimensions, high aspect ratio, mechanical, electrical and thermal properties of graphene and its derivative have all been major areas of research in the last decade. This important reference covers these updates and is a critical book for those working in the fields of materials processing and characterization. Explains how graphene is functionalized and used in the fabrication of nanocomposites for a range of applications Explores why the properties of functionalized graphene make it such a useful, versatile material Describes, in detail, the functionalization process for utilization in graphene
Graphene Rubber Nanocomposites
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Author : Titash Mondal
language : en
Publisher: CRC Press
Release Date : 2022-10-24
Graphene Rubber Nanocomposites written by Titash Mondal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-24 with Technology & Engineering categories.
Provides up-to-date information and research on graphene-rubber nanocomposites Presents a detailed account of the different niche applications ranging from sensors, flexible electronics to thermal, and EMI shielding materials Offers a comprehensive know-how on the structure-property relationship of graphene-rubber nanocomposites Covers the characterization of graphene-based elastomeric composition Delivers a comprehensive understanding of the structure of the graphene, including its chemical modification for usage in elastomer composites
Graphene Materials
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Author : Ashutosh Tiwari
language : en
Publisher: John Wiley & Sons
Release Date : 2015-04-01
Graphene Materials written by Ashutosh Tiwari and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-01 with Technology & Engineering categories.
Graphene Materials: Fundamentals and Emerging Applications brings together innovative methodologies with research and development strategies to provide a detailed state-of-the-art overview of the processing, properties, and technology developments of graphene materials and their wide-ranging applications. The applications areas covered are biosensing, energy storage, environmental monitoring, and health. The book discusses the various methods that have been developed for the preparation and functionalization of single-layered graphene nanosheets. These form the essential building blocks for the bottom-up architecture of various graphene materials because they possess unique physico-chemical properties such as large surface areas, good conductivity and mechanical strength, high thermal stability and desirable flexibility. The electronic behavior in graphene, such as dirac fermions obtained due to the interaction with the ions of the lattice, has led to the discovery of novel miracles like Klein tunneling in carbon-based solid state systems and the so-called half-integer quantum Hall effect. The combination of these properties makes graphene a highly desirable material for applications. In particular, Graphene Materials: Fundamentals and Emerging Applications has chapters covering: Graphene and related two-dimensional nanomaterials Surface functionalization of graphene Functional three-dimensional graphene networks Covalent graphene-polymer nanocomposites Magnesium matrix composites reinforced with graphene nanoplatelets Graphene derivatives for energy storage Graphene nanocomposite for high performance supercapacitors Graphene nanocomposite-based bulk hetro-junction solar cells Graphene bimetallic nanocatalysts foam for energy storage and biosensing Graphene nanocomposites-based for electrochemical sensors Graphene electrodes for health and environmental monitoring